Transition Networks - SFP+ transceiver module - 10 GigE - 10GBase-LR - LC single-mode - up to 6.2 miles - 1310 nm - for P/N: A9K-16T/8-B=, WS-C4948E-F, WS-X45-SUP7L-E, WS-X45-SUP7L-E/2, WS-X45-SUP7L-E=